第3085期:Melting glaciers threaten a sharp rise in water levels

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Researchers at this camp overlooking Greenland's Helheim Glacier have some bad news. 俯瞰格陵兰赫尔海姆冰川的营地研究人员带来了一些坏消息。 This glacier has retreated more than 10 kilometers or so in the last decade or so, from that position far o...View more